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Project No C-178 SOIL BORING AND WELL CONSTRUC-TION LOG: SB-7/MW-5-" Sheet 1 of CLIENT/LOCATION PLANNED USE BORING DEPTH BORING/WELL NO FIELD LOCATION OF BORINGS Barnes Trucking Facility, Exploratory 20 feet SB-7/MW-5 MONITORING WELLS N� t ckton CA ' 1 DRILLING CONTRACTOR DRILL WG TYPE WELL DEPTH BORING DIAMETER. Spectrum Drilling CME-75 19' 8 inches 4 O WELL DIAMETER- SCREEN SLOT SIZE. DRILL RIG OPERATOR WELL MATERIAL •$° I , Bobby Nixon Sch 40 PVC I 2" 0 020" Iww l WELL/BOREHOLE SEAL FILTER PACK WW-4 I Grout with 5%bentonite #3 sand z SAMPLING ESTIMATED SAMPLING METHOD- 5'continuous core-split soon O C7 PERCENT C MONrromG INSTRum= None ] > a ° FIRST ENCOUNTERED WATER DEPTH. -115 feet O C in Cd 6 a o U O STABALIZED WATER DEPTH-DATE 9 10 ft-1/24/99 Gravel fill ' 1 Silty CLAY(CL)with sand,brownish gray,mod plasticity,stiff 2 Leached horizont tan to so , ry 3 1 10 89 Silty CLAY(CL)with sand,some gravel,brownish gray, ' 4 moderate plasticity,stiff,dry to moist X S 0 15 as Silty CLAY(CL)with sand,brownish gray,moderate ' = 6 plasticity,stiff,moist to wet 7 9 I = y 10 Silty CLAY(CL)with sand,brownish gray,moderate ' = o 01 plasticity,stiff,moist to wet 11 12 Silty Organic rich CLAY (CL/OH)with sand,dark 13 o s 95 gray,moderate-high plasticity,stiff,wet ' = 14 1s ° ° 00 Silty CLAY(CL)with micaceous sand,blueLsh gray, ' moderate-high plasticity,stiff,wet 16 17 ' is 0 0 100 Silty Organic rich CLAY (CL/OH),dark blueish gray, 19 moderate-high plasticity stiff,wet Thin bed of dark x brown silt at approx 1 5 feet ' — 20 END OF 21 SORING 22 I 23 ' Dn1hn Date- 1/11/99 g LEARWATEK ' Logged byLorenLoren Taylor_ GROUP, INC Approved by: I